Incoloy 825 Tubes Manufacturer
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Midland Alloys Inc. is a trusted Indian manufacturer and global supplier of stainless steel pipes and specialty alloy tubing, including Incoloy 825 Tubes. These tubes are made from a nickel-iron-chromium alloy known for its outstanding corrosion resistance, particularly in aggressive chemical and acidic environments. Also referred to as Alloy 825, this material provides strong defense against oxidising and reducing conditions, making it a reliable solution in challenging industrial processes. The chemical composition of SB 163 UNS N08825 Tube includes elements like Nickel (38.00–46.00%), Chromium (19.50–23.50%), Molybdenum (2.50–3.50%), and Copper (1.50–3.00%), along with Titanium, Iron (balance), and other trace elements. The mechanical profile features a minimum tensile strength of 518 N/mm² (75 ksi), yield strength of 241 N/mm² (35 ksi), and elongation of 30%, with Brinell hardness capped at 331.
Benefits of Incoloy Alloy 825 Welded Tube
Incoloy 825 Tubes offer long-term performance in corrosive and high-temperature conditions. Their mechanical durability and metallurgical stability make them a practical choice across industries requiring secure and efficient fluid handling systems.
- Excellent resistance to sulphuric and phosphoric acids
- Withstands oxidising and reducing environments
- Maintains strength in elevated temperatures and pressure
- Easy to fabricate, weld, and machine
- Minimal risk of chloride-induced stress corrosion cracking
- Suitable for marine and offshore applications
- Offers dimensional precision and smooth surface finish
- Reliable in high-purity processing systems
Incoloy 825 Tubes Specifications
Seamless Tube OD : 6 mm OD x 0.7 mm to 50.8 mm OD x 3 mm thk.
Welded Tube OD : 6.00 mm OD up to 914.4 mm OD
EFW Tube Size : 3.35 mm OD To 101.6 mm OD
ASTM B423, B704 / ASME SB423, SB704
Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded
Round, Square, Rectangular, Hydraulic Etc
Single Random, Double Random, Standard & Cut length Tube
Plain End, Beveled End, Treaded Tube
SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Tubes, Finish as per customer Requirements
Contact us today to discuss how Incoloy 825 Tubes can benefit your application. Whether you need guidance in selecting the right Tubes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Incoloy 825 | 2.4858 | N08825 | NCF 825 | NA 16 | ЭП703 | NFE30C20DUM | NiCr21Mo |
| Element | Incoloy Alloy 825 |
| Density | 8.14 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 80,000 , MPa – 550 |
| Yield Strength (0.2%Offset) | Psi – 32,000 , MPa – 220 |
| Elongation | 30 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN | OR |
| Incoloy 825 | 2.4858 | N08825 | NCF 825 | NFE30C20DUM | NA 16 | ЭП703 | NiCr21Mo | XH38BT |
Incoloy Tubes Grades We Offer
Difference Between SB 163 UNS N08825 Tube vs Inconel 625 Tubes
SB 163 UNS N08825 Tubes (Incoloy 825) are primarily used in acidic and chemical processing environments due to their balanced nickel-chromium-iron composition with added molybdenum and copper. They excel in resisting both oxidising and reducing agents. On the other hand, Inconel 625 Tubes are nickel-chromium-molybdenum-niobium alloys developed for high strength and superior fatigue resistance. While both provide corrosion protection, Inconel 625 is more suited to extreme heat and pressure systems, especially in aerospace and marine engineering, whereas Alloy 825 performs more reliably in moderate temperature ranges and chemical media exposure.
Round Bar
Analytic
Cut to Length
Centering
Heating
Perforation
Inspection of Size
Pickling
Inspection of Surface
Lubricating
Cold Drawing (Cold Rolling)
Degreasing
Annealing
Straightening
Cut
Pickling / Passivating
Inspection
Analytic
Marking
Packing & Shipping
Applications of ASME SB 163 UNS N08825 Incoloy 825 Tubing
ASME SB 163 UNS N08825 Incoloy 825 Tubing plays a crucial role across numerous industries that require durable, corrosion-resistant tubing. In the chemical processing sector, these tubes are used in piping systems exposed to sulphuric and nitric acids. In pollution control systems, they resist corrosive flue gas environments. Oil and gas operations utilise Nickel 825 exhaust tubing in offshore rigs, refining units, and downhole tools. In the nuclear industry, Incoloy 825 tubes support reactor cooling and fuel reprocessing functions. Heat exchangers, particularly Incoloy alloy 825 condenser tubing, depend on the material’s thermal stability. Furthermore, pickling operations favour Alloy 825 due to its resistance to organic and inorganic acids.
Why Choose Midland Alloys Inc. for Incoloy 825 Tubes
Midland Alloys Inc. is a leading Indian manufacturer and exporter of high-quality SS 317/317L pipes, with equal expertise in supplying Incoloy 825 Seamless Tube and Nickel alloy 825 hot-worked tubing. We follow strict ASTM/EN standards, maintain ISO-certified quality systems, and offer tailored solutions such as cut-to-length services, customised end finishes, special thickness schedules, and surface treatments. Our products reach global clients across Gulf nations, Europe, Africa and Southeast Asia. Every Werkstoff NR. 2.4858 heater tube undergoes comprehensive in-house testing, including dimensional checks, hydro tests, and PMI. We also accommodate third-party inspections as required. With on-time delivery, expert handling of bulk and project-based orders, and transparent documentation, we strive to build long-term partnerships based on trust, quality, and performance. All tubes are marked per ASTM/ASME standards (e.g., ASTM B163 / ASME SB163) and supplied with Mill Test Certificates (MTCs) validating compliance with both chemical composition and mechanical properties.
FAQs
It’s widely used in acid production, offshore systems, pollution control, and chemical processing.
Yes, Incoloy alloy 825 welded tube exhibits good weldability without post-weld heat treatment in many cases.
The product conforms to ASME SB 163, with the UNS designation N08825 and Werkstoff Nr. 2.4858.
Yes, we offer Incoloy 825 Bright Annealed Tube in cut-to-length forms as per client requirements.
It is limited to a Brinell hardness of 331 max.
